[PATCH 09/22 V2] drm/amd/pm: check specific index for smu13

[Jesse Zhang]

Check for specific indexes that may be invalid values.

Signed-off-by: Jesse Zhang <jesse.zh...@amd.com>
Suggested-by: Tim Huang <tim.hu...@amd.com>
---
 drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_6_ppt.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_6_ppt.c 
b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_6_ppt.c
index 051092f1b1b4..7c343dd12a7f 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_6_ppt.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_6_ppt.c
@@ -2336,6 +2336,8 @@ static int smu_v13_0_6_mode2_reset(struct smu_context 
*smu)
 
        index = smu_cmn_to_asic_specific_index(smu, CMN2ASIC_MAPPING_MSG,
                                               SMU_MSG_GfxDeviceDriverReset);
+       if (index < 0)
+               return index;
 
        mutex_lock(&smu->message_lock);
 
-- 
2.25.1